I've had the Matchbox Chinook for a long while, back when it was the only Chinook available on the market (the Aurora Chinook was long OOP). I found the PE set for it yesterday at the local IPMS show. The Eduard set says for the Matchbox/Revell kit. One of my local club members was selling some of his kits and among them was a Revell Chinook. We popped it open and it is the Matchbox kit inside.
I've seen the Italeri kit and assume it is better. I've been impressed with their 1/72 scale helicopters, but am not about to buy another helicopter. I might as well build the old one I've got.
BTW, won three 2nd place trophies at the show.